A 23-year-old Rison man was killed early Thursday morning when his vehicle was struck by a Mack truck on U.S. 63 in Cleveland County.

A Toyota pickup driven by Darren Snow, 23, of Rison, had been pulled out of a ditch and Snow was attempting to make a u-turn northbound from the southbound shoulder of U.S. 63 when he pulled out into the path of a 2010 Mack truck driven by Larry Williams, 43, of White Hall, according to State Police.

Williams was not injured.

Snow’s death was the 484th fatality on a state highway this year.